If you’ve ever jumped into an ice-cold lake and felt that instant rush of clarity, you already understand why cold plunge tubs are having such a moment. But Plunge didn’t just ride a wellness wave. They built one. Here’s the full story of how two guys turned a pandemic idea into a multi-million dollar brand that caught the attention of Shark Tank investors and hasn’t slowed down since.
Plunge Details
Plunge is a cold plunge tub company founded by Michael Garrett and Ryan Duey. The idea was born during the COVID-19 pandemic when both founders were looking for accessible home wellness products that supported recovery and mental clarity. Their flagship product is a filtration cold plunge system that chills water down to 39 degrees Fahrenheit. It also heats up to 103 degrees, making it a genuine hot and cold therapy tub in one unit. That kind of versatility is rare in the cold therapy equipment space.
What separates Plunge from a basic ice bath recovery tub is the built-in filtration and temperature control. You don’t need to haul ice bags or drain and refill constantly. It works like a proper home spa wellness equipment piece, sitting neatly in your garage, backyard, or bathroom. The design is clean, the technology is reliable, and the price point sits at around $4,990 for the standard model. It isn’t cheap, but for serious users it delivers real value.
Shark Tank Episode Details
Plunge appeared on Shark Tank Season 13 Episode 21. Michael Garrett and Ryan Duey walked into the tank asking for $400,000 in exchange for 4% equity. That put their company valuation at $10 million, which raised a few eyebrows in the room. At the time of filming, they had already generated over $3 million in revenue, largely fueled by pandemic-era demand for home recovery therapy products. People were stuck at home, investing in their health, and searching for ice bath alternative systems that didn’t require a chest freezer full of ice.
The timing was sharp. Cold water immersion therapy had been gaining traction in wellness circles for years, and Plunge positioned itself right at the intersection of science-backed recovery and consumer convenience. The sharks noticed.
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The Shark Tank Pitch
When Michael and Ryan stepped onto the Shark Tank stage, they weren’t just selling a tub. They were selling a lifestyle shift. Their pitch covered cold therapy benefits like reduced inflammation, faster muscle recovery, improved mood, and better sleep. They backed it with data and spoke with genuine conviction. You could tell these weren’t just entrepreneurs chasing a trend. They were true believers in the product.
Robert Herjavec was the shark who took the leap. He offered $400,000 for 4% equity, matching exactly what the founders had asked for. The Plunge Shark Tank deal closed without the usual back-and-forth haggling you often see on the show. That alone said something about how strong the pitch was. Robert has a track record of investing in health optimization tools and tech-forward lifestyle products, so the fit made sense.
The moment the Plunge Shark Tank deal was sealed, it sparked a wave of consumer interest that pushed the brand into a completely different league.
Where Are They Now?
The post Shark Tank success story for Plunge is genuinely impressive. After the episode aired, sales surged dramatically. The company hit the $100 million sales milestone faster than most wellness startups ever dream of. They expanded their Plunge manufacturing facility to meet demand and grew their team significantly. What started as a pandemic startup success story became one of the more talked-about exits in the wellness recovery technology space.
By 2026, Plunge has expanded its product line to include multiple tub sizes, accessories, and even commercial options aimed at float spa business owners and gyms. Their customer base spans everyday fitness lovers, professional athletes, and biohackers who treat cold plunge sessions as non-negotiable parts of their daily routine. The brand has also invested heavily in content and community, building trust through education about cold water immersion therapy and its science-backed advantages.
The Plunge company revenue growth since their Shark Tank appearance has been remarkable. They aren’t just selling a product anymore. They’re leading a conversation about what modern wellness actually looks like.
FAQ’s
What is Plunge and what does it do?
Plunge is a home cold plunge tub brand that offers a filtration cold plunge system capable of cooling water to 39 degrees and heating it to 103 degrees for hot and cold therapy use.
Who founded Plunge and when did they appear on Shark Tank?
Michael Garrett and Ryan Duey founded Plunge. They appeared on Shark Tank Season 13 Episode 21 seeking $400,000 for 4% equity.
Which shark invested in Plunge?
Robert Herjavec made the deal, investing $400,000 for a 4% stake in the company, matching the founders’ original ask exactly.
How much has Plunge made since Shark Tank?
Plunge reached the $100 million sales milestone after their Shark Tank appearance, making them one of the standout wellness startup success stories from the show.
Is Plunge worth buying in 2026?
For anyone serious about cold therapy benefits and recovery, Plunge offers a reliable, filtration-equipped system that eliminates the hassle of traditional ice baths, making it a solid investment for home wellness.
Ryan Mitchell is a seasoned digital marketing strategist and content writer with over 8 years of experience in SEO and guest posting. He has contributed to top business publications, helping brands grow their online visibility through data-driven strategies. Ryan focuses on ethical link building and sustainable content growth practices.